return image size when client image processing

1 files changed, 13 insertions, 8 deletions

diff --git a/go/images/resizing.go b/go/images/resizing.go
index 6e774e1db..7e21db70b 100644
--- a/go/images/resizing.go
+++ b/go/images/resizing.go
@@ -9,17 +9,22 @@ import (
 	"image/png"
 )
 
-func Resized(ext string, data []byte, width, height int) (resized []byte) {
+func Resized(ext string, data []byte, width, height int) (resized []byte, w int, h int) {
 	if width == 0 && height == 0 {
-		return data
+		return data, 0, 0
 	}
 	if srcImage, _, err := image.Decode(bytes.NewReader(data)); err == nil {
 		bounds := srcImage.Bounds()
 		var dstImage *image.NRGBA
-		if width == height && bounds.Dx() != bounds.Dy() {
-			dstImage = imaging.Thumbnail(srcImage, width, height, imaging.Lanczos)
-		} else {
-			dstImage = imaging.Resize(srcImage, width, height, imaging.Lanczos)
+		if bounds.Dx() > width && width != 0 || bounds.Dy() > height && height != 0 {
+			if width == height && bounds.Dx() != bounds.Dy() {
+				dstImage = imaging.Thumbnail(srcImage, width, height, imaging.Lanczos)
+				w, h = width, height
+			} else {
+				dstImage = imaging.Resize(srcImage, width, height, imaging.Lanczos)
+			}
+		}else{
+		  return data, bounds.Dx(), bounds.Dy()
 		}
 		var buf bytes.Buffer
 		switch ext {
@@ -30,7 +35,7 @@ func Resized(ext string, data []byte, width, height int) (resized []byte) {
 		case ".gif":
 			gif.Encode(&buf, dstImage, nil)
 		}
-		return buf.Bytes()
+		return buf.Bytes(), dstImage.Bounds().Dx(), dstImage.Bounds().Dy()
 	}
-	return data
+	return data, 0, 0
 }